In 1871 Thomas Crispin was manufacturing his patent lath bolter. By the following year G. N. Miller & Co. was manufacturing Crispin's lath machines. By 1873 G. N. Miller & Co. seems to have disappeared, and by 1874 Thomas Crispin was again manufacturing his lath and stave machines.

Information Sources

• July 1872 Lumberman's Gazette, ad for Crispin's patent lath bolter, including a list of buyers and how many machines each had bought. It adds up to 42 machines. The same, issue, page 4.

  G. N. Miller & Co., at Bay City, are manufacturers of a Lath Machine that is in use by quite a large number of our mill owners and they testify to its good qualities. This machine has been greatly improved recently and for the work it is designed to perform it stands pre-eminent. Messrs. Miller & Co. are dong an extensive business and are doing it satisfactorily to their patrons. The machine is perhaps better known as "Crispin's Improved Lath Machine." Miller and Co. recently purchased the business and have enlarged the capacity for manufacturing the machines.

• 1873 Michigan State Gazetteer and Business Directory page 104, under Bay City. "Miller, G. N. & Co., manufacturers Crispin's Lath Machines, cor 7th and Jefferson".
• 1875 Annual Statement of the Salt and Lumber Business of the Saginaw Valley (published 1876), ad from Thomas Crispin for his lath machine.
• 1875 Michigan State Gazetteer and Business Directory, page 122. "Crispin Thomas, Mnfr Lath Machinery, cor 7th and Adams". Page 119 has a corresponding ad.